There's no set date for the inspection yet, but Pompeo said it'll happen as soon as "logistics are worked out."

Pompeo also said a second summit between Kim and President Donald Trump is "pretty close" to happening.

The first summit between the two leaders ended with a pledge to denuclearize the Korean peninsula, through there have been some bumps in the road since then. Trump canceled Pompeo's trip to Pyongyang in August, saying there wasn't enough evidence that North Korea was following through on its part of the agreement.